MCU16/0079 Appendix F - Environmental Noise Imact Assessment

RS L ACTIVITY NOIS E PREDICTION CALCULATIONS : (LA10 1hr and LA01 1hr levels are represented as N/A if the duration of events do not occur for 10% or 1% of the 1 hour period)

R3: Dwelling Due East across River
                                                                 Creep     Acoustic Quality Objectives
AT-GRADE CAR DOOR CLOS URE
                                                                 LAeq       LAeq        LA10    LA01
Noise source level for single event                                      70               72      78   dB (A)
Duration of single event                                                          0.052                S e c o nds
Number of events in the measurement period                        67                     200           Eve nts
Total time duration of combined events                            3.5                   10.4           S e c o nds
                                                                 LAeq     LAeq 1hr LA10 1hr LA01 1hr
Noise source level for assessment time period                     46          45        N/A      N/A   dB (A)
Tonality / Impulsiveness correction                                0                       5           dB
M inimum distance to receiver                                                      292                 m
Distance attenuation (-6 dB per doubling to river, river 0 dB)                     -41                 dB
Building screening                                                                  0                  dB
Façade reflection                                                                  2.5                 dB
Impact at nearest façade                                          8           11        N/A      N/A   dB (A )
Reduction through open window                                                -7.5        -7.5    -7.5  dB
Impact inside open window                                                     4         N/A      N/A   dB (A )


                                                                 Creep  Acoustic Quality Objectives
CAR BYPAS S
                                                                 LAeq    LAeq      LA10      LA01
Noise source level for single event                                  68              70        73   dB (A)
Duration of single event                                                        7                   S e c o nds
Number of events in the measurement period                      67                  200             Eve nts
Total time duration of combined events                         466.7               1400.0           S e c o nds
                                                               LAeq    LAeq 1hr LA10 1hr LA01 1hr
Noise source level for assessment time period                   65         64        70        73   dB (A)
Tonality / Impulsiveness correction                              0                    0             dB
M inimum distance to receiver                                                  300                  m
Distance attenuation (-6 dB per doubling to river, river 0 dB)                 -41                  dB
Acoustic screening                                                              0                   dB
Façade reflection                                                              2.5                  dB
Impact at nearest façade                                        26         25        31        34   dB (A )
Reduction through open window                                             -7.5      -7.5      -7.5  dB
Impact inside open window                                                  18        24        27   dB (A )


                                                                 Creep  Acoustic Quality Objectives
PEOPLE TALKING OUTS IDE
                                                                 LAeq    LAeq      LA10      LA01
Noise source level for single event                                  58              60        62   dB (A)
Duration of single event                                                       720                  S e c o nds
Number of events in the measurement period                       1                    3             Eve nts
Total time duration of combined events                         720.0               2160.0           S e c o nds
                                                               LAeq    LAeq 1hr LA10 1hr LA01 1hr
Noise source level for assessment time period                   57         56        60        62   dB (A)
Tonality / Impulsiveness correction                              0                    0             dB
M inimum distance to receiver                                                  295                  m
Distance attenuation (-6 dB per doubling to river, river 0 dB)                 -41                  dB
Building directivity                                                            0                   dB
Façade reflection                                                              2.5                  dB
Impact at nearest façade                                        19         17        22        24   dB (A )
Reduction through open window                                             -7.5      -7.5      -7.5  dB
Impact inside open window                                                  10        14        16   dB (A )


                                                                 Creep    Acoustic Quality Objectives
S UBDUED PATRONS AT S MOKERS DECK
                                                                 LAeq     LAeq      LA10       LA01
Noise source level for single event                                    65             72         75         dB (A)
Duration of single event                                                        720                         S e c o nds
Number of events in the measurement period                         1                   3                    Eve nts
Total time duration of combined events                           720.0              2160.0                  S e c o nds
                                                                 LAeq     LAeq 1hr LA10 1hr LA01 1hr
Noise source level for assessment time period                     64         63        72      75    dB (A)
Tonality / Impulsiveness correction                                0                    0            dB
M inimum distance to receiver                                                    305                 m
Distance attenuation (-6 dB per doubling to river, river 0 dB)                    -42                dB
Acoustic treatments to DOSA                                                        0                 dB
Façade reflection                                                                 2.5                dB
Impact at nearest façade                                          25         23        32      35    dB (A )
Reduction through open window                                               -7.5      -7.5    -7.5   dB
Impact inside open window                                                    16        25      28    dB (A )


                                                                 Creep        Acoustic Quality Objectives
BOIS TEROUS PATRONS AT S MOKERS DECK
                                                                 LAeq         LAeq      LA10       LA01
Noise source level for single event                                      75               80         83     dB (A)
Duration of single event                                                            720                     S e c o nds
Number of events in the measurement period                         1                       3                Eve nts
Total time duration of combined events                           720.0                  2160.0              S e c o nds
                                                                 LAeq     LAeq 1hr LA10 1hr LA01 1hr
Noise source level for assessment time period                     74         73        80      83    dB (A)
Tonality / Impulsiveness correction                                0                    0            dB
M inimum distance to receiver                                                    305                 m
Distance attenuation (-6 dB per doubling to river, river 0 dB)                    -42                dB
Acoustic treatments to DOSA                                                        0                 dB
Façade reflection                                                                 2.5                dB
Impact at nearest façade                                          35         33        40      43    dB (A )
Reduction through open window                                               -7.5      -7.5    -7.5   dB
Impact inside open window                                                    26        33      36    dB (A )




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